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211412612 = 221715711979
BaseRepresentation
bin11001001100111…
…10011010000100
3112201210212120202
430212132122010
5413110200422
632551150032
75144656205
oct1446363204
9481725522
10211412612
11a9378474
125a975318
1334a51b28
14201135ac
1513860b92
hexc99e684

211412612 has 24 divisors (see below), whose sum is σ = 392182560. Its totient is φ = 99374720.

The previous prime is 211412609. The next prime is 211412623. The reversal of 211412612 is 216214112.

It is a happy number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 105839 + ... + 107817.

It is an arithmetic number, because the mean of its divisors is an integer number (16340940).

Almost surely, 2211412612 is an apocalyptic number.

It is an amenable number.

211412612 is a deficient number, since it is larger than the sum of its proper divisors (180769948).

211412612 is a wasteful number, since it uses less digits than its factorization.

211412612 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3571 (or 3569 counting only the distinct ones).

The product of its digits is 192, while the sum is 20.

The square root of 211412612 is about 14540.0348005086. The cubic root of 211412612 is about 595.7219887115.

Adding to 211412612 its reverse (216214112), we get a palindrome (427626724).

The spelling of 211412612 in words is "two hundred eleven million, four hundred twelve thousand, six hundred twelve".

Divisors: 1 2 4 17 34 68 1571 1979 3142 3958 6284 7916 26707 33643 53414 67286 106828 134572 3109009 6218018 12436036 52853153 105706306 211412612